Prentice Hall
©
2003
LOHS AP Chem
Schrempp
2008
9
•
For an equilibrium we write
•
As the reaction progresses
–
[A] decreases to a constant,
–
[B] increases from zero to a constant.
–
When [A] and [B] are constant, equilibrium is achieved.
•
Alternatively:
–
k
f
[A] decreases to a constant,
–
k
r
[B] increases from zero to a constant.
–
When
k
f
[A] =
k
r
[B] equilibrium is achieved.
•
The Concept of Equilibrium
